Fluid filter frame system and method

Abstract

The present invention may be used for framing a fluid flow filter pack. A first frame member may have a first border element with an open portion. The first border element may have four first side walls bendable along a line parallel to a peripheral edge of each of the first side walls. A second frame member may have a second border element with an open portion. The second border element may have four side walls bendable along a bend line parallel to an outer edge of each side wall. Each side wall of the second frame member may have a sealing flap bendable along the outer edge. The second frame member may be positioned on the first frame member with each side wall overlapping and attached to one of the first frame member side walls. The sealing flap may be bent to be adjacent to the second frame member side walls.

1. A device attachable to a filter pack for disposing in a fluid flow channel comprising:
 a first frame member having a first border element having a first open center portion therein, wherein said first border element having four first side walls bendable along a line parallel to a peripheral edge of each of said first side walls; 
 an attachment tab attached at an end of each of said first side walls; 
 a second frame member having a second border element having a second open center portion therein, wherein said second border element having four second side walls bendable along a bend line parallel to an outer edge of each second side wall; 
 each of said second side walls having a sealing flap bendable along said outer edge; and 
 said second frame member disposable on said first frame member with each of said second side walls overlapping and attached to one of each of said first side walls and said sealing flaps bent to be adjacent to said second side walls. 
 
   
   
     2. The device as in  claim 1  wherein a tab is formed in each of said second side walls and said tab attached and bendable at said bend line. 
   
   
     3. The device as in  claim 2  wherein said tab having an aperture therein. 
   
   
     4. The device as in  claim 2  wherein said tab having an arched outer edge. 
   
   
     5. The device as in  claim 1  wherein said sealing flaps having flap ends that extend outwardly at an angle relative to an end of each of said second side walls. 
   
   
     6. The device as in  claim 1  wherein a resilient bead of material is disposed and attached between each of said second side walls and said sealing flaps adjacent said outer edge. 
   
   
     7. The device as in  claim 1  wherein when said sealing flaps are bent, said sealing flaps and said second side walls are impregnated with a stiffening fluid adjacent said outer edge. 
   
   
     8. The device as in  claim 1  wherein a corner element is inserted and attached at each of four corners of said second frame member disposed to engage adjacent sealing flap ends. 
   
   
     9. The device as in  claim 1  wherein attachment is by an adhesive. 
   
   
     10. The device as in  claim 1  wherein said attachment is by an adhesive applied in sufficient quantity to inhibit flow of fluids between said first side walls and said second side walls. 
   
   
     11. The device as in  claim 1  wherein said attachment is by an adhesive applied in sufficient quantity to inhibit flow of fluids between said first side walls and said filter pack. 
   
   
     12. The device as in  claim 1  wherein said filter pack is a pleated filter pack. 
   
   
     13. The device as in  claim 1  wherein said sealing flaps are disposed to engage a protrusion attached to an airflow inlet. 
   
   
     14. A device for filtering fluid flow in a fluid flow channel comprising:
 a filter pack disposed and retained between a first frame member and a second frame member; 
 said first frame member having a first border element having a first open center portion therein, wherein said first border element having four first side walls positioned approximately orthogonal to said first border element wherein one of each of said first side walls is attached to one of two side faces and two side ends of said filter pack; 
 said second frame member having a second border element having a second open center portion therein, wherein said second border element having four second side walls positioned approximately orthogonal to said second border element wherein one of each of said second side walls overlaps and is attached to one of each of said first side walls; and 
 a sealing flap attached at an outer edge of each of said second side walls and said sealing flaps disposed to be adjacent to said second side walls. 
 
   
   
     15. The device as in  claim 14  wherein there is an attachment tab attached between adjacent first side wall ends. 
   
   
     16. A device attachable to a filter pack for disposing in a fluid flow channel comprising;
 a frame member having a border element having an open center portion therein, wherein said border element having four side walls bendable along a line parallel to a peripheral edge of each of said side walls; 
 each of said side walls having a sealing flap bendable along said peripheral edge; and 
 said sealing flaps bent to be adjacent to said side walls. 
 
   
   
     17. A method for assembly of a fluid filter device comprising:
 disposing a filter pack on a first frame member having a bead line of adhesive for attachment adjacent a pair of pleated ends and a pair of filter ends of said filter pack; 
 folding a plurality of first side walls having a bead line of adhesive for attachment to a pair of side faces and said pair of filter ends to attach said first side walls; 
 disposing said first frame member and said filter pack on a second frame member having a bead line of adhesive for attachment adjacent said pair of pleated ends and said pair of filter ends; 
 folding a plurality of second side walls having a bead line of adhesive for attachment to said plurality of first side walls; 
 folding a plurality of sealing flaps on a plurality of bend lines parallel to an outer edge of said plurality of second side walls to dispose said sealing flaps adjacent said second side walls.